I decided to change the license to GPL and thus offer the source code to the open source community. This does not mean that I stop developing RawTherapee. I will invest as much time into the development as till now. I have three motivations for this decision: first, I love playing with image processing algorithms but I’m not keen on GUI development. Recently a huge amount of work had to be invested to develop a usable GUI and I had no time left to play with new algorithms. I hope to involve some new developers who help me to maintain and enhance the GUI. The second reason of licence change was that I am very frustrated by the huge amount of bug reports I can not reproduce (believe it or not, RT is stable on my PC). I hope that with the open source model some talented users can identify the problems and fix the bugs. The third (but maybe the most important) reason of switching to GPL is that our baby reached the age (10 month old) when he needs his father more and more. I dont want to disappoint him :). With more developers involved the development process will hopefully more smooth and wont stop when I am busy.

Los cambios en la versión 3 son los siguientes:

The most significant changes in the GUI are the following:

multi-tab interface

the real batch processing support arrived: select multiple images and adjust them together (the multi-adjust behavior of some parameters is selectable in the preferences dialog: they can be either additive or absolute)

completely re-written editor: preview and detail view are now gone. The main image view can be magnified as required, and only the necessary part of the image will be re-calculated. There is a small navigator, too, and infinitely many detailed views can be opened to investigate fine details.

16 bit thumbnails (an option, takes double disk space)

before/after view in the editor

The only change in the algorithms is:

the behavior of the exposure controls changed. The “exposure” parameter is what was called “brightness” in previous versions. The “brightness” parameter is now a real brightness control, that shifts the histogram (of course with highlight/shadow protection)

Roadmap of algorithm changes planned for V3.0 (approximately in sequence of implementation):